While the leaked order guide sheds some light on the equipment packages offered for the new Shelby Mustangs, pricing for the GT350 and GT350R officially remains as much a mystery as the cars' final power numbers.

We spoke to a trusted source, however, who indicated that it would be fair to expect the standard GT350 to carry a base price of around $50,000, while the significantly upgraded GT350R should have an opening sticker of around $70,000.

The latter number is an important one, because it undercuts the Camaro Z/28's starting price of $75,000. And the GT350R is clearly Ford's designated Z/28 slayer, following a similar weight reduction regimen, etc.

You get a lot of car either way. Remember that the presumptive $50K sticker on the base GT350 includes both the hot new Voodoo 5.2L V8 and MagneRide. The $70K starting price on the GT350R includes the weight-reduction regimen, standard carbon-fiber wheels, better rubber, and a host of R-specific tuning.

As for the engine, we keep hearing numbers ranging from 520–540 hp, so expect a final output figure in that range.